Rocket Espresso Boiler Safety Valve – A299904998 Protect your Rocket Espresso machine's boiler with this genuine OEM safety valve (A299904998). The safety valve is a critical boiler protection component — it automatically releases pressure if the boiler exceeds safe operating limits, preventing boiler damage or failure. Made from low-lead brass (CW510L / OT57) with a silicone sealing gasket for reliable, long-lasting performance. Specifications Part number: A299904998 Material: Brass CW510L (OT57) — low lead content Sealing: Silicone gasket Hose-end fitting: ø7mm Compatible Models Rocket Appartamento (April 2021 – ) Rocket Appartamento (April 2023 – ) Rocket Appartamento 2017 Rocket Giotto Evoluzione 2 (2017) Rocket Giotto Evoluzione V2 (2013) Rocket Giotto Cronometro R (September 2019 – ) Rocket Giotto Cronometro V (September 2019 – ) Rocket Mozzafiato Evoluzione R Rocket Mozzafiato Evoluzione V Rocket Mozzafiato Cronometro R (September 2019 – ) Rocket Mozzafiato Cronometro R (April 2023 – ) Rocket Mozzafiato Cronometro V (September 2019 – ) Rocket Porta Via (August 2020 – ) Rocket R Nine One Rocket R Nine One (September 2020 – ) Rocket R Nine One (November 2022 – ) When to Replace Your Safety Valve Valve is weeping or leaking steam/water when not under excess pressure Valve has discharged and will not reseat correctly Visible corrosion or damage to the valve body Routine replacement as part of a major boiler service Frequently Asked Questions Is this a genuine Rocket Espresso part? Yes, this is a genuine OEM Rocket Espresso boiler safety valve (A299904998), made from low-lead brass with a silicone sealing gasket. Can I replace this myself? Safety valve replacement requires draining the boiler and working with pressurised fittings. We recommend this be carried out by a qualified technician. Our Sydney-based team can assist — contact us to book a service.